<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>12-继承-层叠-优先级</title>
		<style type="text/css">
			/*继承*/
			.box{
				font-size:16px;
				color:red;
			}
			/*层叠*/
			.word{
				font-size:14px;
				color:blue;
			}
			#one{
				font-size:13px;
				color:orange;
			}
		</style>
	</head>
	<body>
		<div class="box">
			<p class="word" id="one" style="color:green;font-size:18px;">继承-层叠-优先级</p>
		</div>
	</body>
</html>
